Hard hat



FIG. 1 is a front perspective view of a hard hat showing my new design;

FIG. 2 is a right side elevation view thereof, the left side being a mirror image;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a front perspective view of a second embodiment thereof;

FIG. 7 is a right side elevation view of FIG. 6, the left side being a mirror image;

FIG. 8 is a front elevation view of FIG. 6;

FIG. 9 is a rear elevation view of FIG. 6; and,

FIG. 10 is a top plan view of FIG. 6.

The details shown in broken lines form no part of the claimed invention. The shaded portions of the brim in FIGS. 6-10 represent a different material from the remainder of the hard hat. 

CLAIM The ornamental design for a hard hat, as shown and described. 